Governor mechanism for explosive-engines.



'No. 735,029. Y PATENTED JULY 28, 1903.

' W; J. WRIGHT.

GOVERNOR MECHANISM FOR EXPLOSIVE ENGINES.

APPLICATION FILED FEB. 26, 1902.

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No. 735,029. PATBNTED JULY 28, 1908; W. J. WRIGHT.

GOVERNOR MECHANISM FOR EXPLOSIVE ENGINES.

.APPLIOATION FILED T11R26. 1902.

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Rms pm'zaa co, vnoroumo. WASHIN UNITED STATES Patented July 28, 1903.

PATENT OFFICE.

\VILLIAM J. WRIGHT, OF PITTSBURG, PENNSYLVANIA, ASSIGNORTHREE-SIXTEENTHS TO J. W. LEE AND FRED J. GALLOWAY, OF

PITTSBURG, PENNSYLVANIA.

GOVERNOR MECHANISM FOR EXPLOSlVE-ENGINES.

$PECIFICATI ON formingpart of Letters IPatent No. 735,029, dated July28, 1903.

Application filed February 26, 1902. Serial No. 95,706. (No model.)

To all whom it may concern.-

Be it known that IQVILLIAM J. WRIGHT, residing at Pittsburg, in thecounty of Allegheny and State of Pennsylvania, have invented a certainnew and Improved Governor Mechanism, of which the following is aspecification.

Myinvention is in the nature of a new construction of governor mechanismespecially adapted for explosive-engines for controlling the inflow ofthe working agent to the working cylinder, and primarily it seeks toprovide a very simple and inexpensive construction of this kind capableof being readily combined with the ordinary types of gas or gasoleneengines and which will effectively operate for the intended purposes.

The invention consists in certain novel correlation and combination ofparts, all of which will hereinafter be fully described, andspecifically pointed out in the appended claims, reference being had tothe accompanying drawings, in which Figure 1 is a longitudinal sectionof a gasengine equipped with my improved, governor mechanism. Fig. 2 isa transverse section thereof,taken practically on the line 2 2 of Fig 1.Fig. 8 is a top plan view of the parts shown in Fig. 2. Fig. 4 is ahorizontal section taken on the line at 4: of Fig. 3. Fig. 5 is a detailsection on the line 5 5 of Fig. 2.

In the drawings I have illustrated my improved governor mechanism asapplied to an engine having a valved intake at each end of the pump andworking cylinders; but I desire it understood the construction of engineshown per se forms no part of this invention, as the same is fullydisclosed in my copending application, Serial No. 95,097, filed February21, 1902. Furthermore, the said governor mechanism may with a slightvariation of parts be adapted for use on the ordinary type ofexplosive-engines. In the type of engine shown the same embodies asuitable base A, on one end of which is mounted the crankshaft B. At theother end the base A has a slideway afor the cross-head O, to which isjoined the rod d of the piston D, that operates in the working cylinderE. On a pin P in the cross-head C is fulcrumed a bell-crank lever F, theendfof which is connected to the wrist-pin G on crank-disk of the shaftB, and the end f is joined with the rod h of the piston H, that operatesin the pump-cylinder I, such arrangement of parts joining the twopistons D and H to operate in unison. It

- should be stated that in the construction shown the working cylinderis connected by the crossed converging tubes with the exhausts at eachend of the pumping-cylinder,

so that as the charge is forced out of the' front end of the saidpumping-cylinderit enters into the rear end of the working cylinder, andvice versa.

When joined with the type of engine shown, the governor mechanism isformed with a mixing-chamber 1 in a base having flanges 1 for securingit to like flanges h h on the pumpcylinder, and at each end themixing-chamber has an outlet 1 1 controlled by a normally closing valve1 that opens outward by the piston suction to allow for the escape ofthe working agent from the chamber 1 into the cylinder. Each outlet 1 isdisposed over an inlet 72 for the cylinder H, the purpose of which willpresently appear. Centrally the chamher 1 has a feed hub or extension 1,having flanges 1 to receive the flanges 2 of the feedtube 2, having acontracted bore 2 to receive a shiftable hollow valve 3, the upper endof which termigates in a closure member or seat 3 at a point above aseries of jet-inlets 3. The valve 3 snugly fits the bore 2, and the saidbore at the lower end of the tube 2 is enlarged, as at 2, to providefora mixing-space surrounding the discharge or nozzle end 3 of the valve3, as best shown in Fig. 2, by reference to which it will also benoticed adjacent the nozzle end 3 of the valve the tube 2 has a seriesof air-inlets 2 controlled by a horizontally-shiftable slotted collar 4,the adjustment of which controls the size of the inlets 2. (See Fig. 5.)At the upper end the tube 2 is also enlarged to form a gas-space 2 inwhich the seat and perforated end of the valve 3 plays, and into thespace 2 discharges the gas or gasolene supply pipe 5. The valve 3 has astem 3 that passes up through a gland 6 on the tube and carries at itsupper end a grooved head 3 to receive the lugs 7 '7 on the bifurcatedends 8 of the short arm 8 of a bell-cranklever 8, fulcrumed in a bracket9, secured to the outside of the tube 2. (See Figs. 2 and 3.) The valve3 is normally held to its upper or maximum feeding position, as shown inFig. 2, by a spring 9 or other equivalent means.

10 designates a shaft journaled in a bearing-box 2 formed integral withthe base of to the tube 2 and disposed in a plane parallel with thebell-crank-lever arm 8*. At one end the shaft 10 carries a band-wheel 10belted or otherwise geared with the crank-shaft B. (See Fig. 1.) To theother end of the shaft 10 is fulcrumed the centrifugally-operatinglever-arms ll 11, carrying the ball-weights 11, and said lever-arms ll11 have link members 11, that pivotally join with the grooved sleeve 12,slidable upon and rotatable with the shaft 10, and with said sleeveconnects the bifurcated end 8 of the long arm 8 of the bell-crank lever8, as clearly shown in Figs. 2 and 3.

At the point where the tube 2 discharges into the mixing-chamber 1 saidchamber is provided with a screen 13 to clear the Working agent of thecoarser particles of refuse that might pass in with the gas or gasolene.

From the foregoing, taken in connection with theaccompanyingdrawings,itis thought the advantages of my improved governormechanism and the operation thereof will be readily understood by thoseskilled in the art to which it appertains.

It will be noticed the gas or gasolene passes through the perforationsin the upper end of valve 3 and down through the valve and dischargesinto the mixing-chamber at the point where the air enters, the flow ofwhich can be increased or decreased by adjusting the slotted collar 4.As the engine speeds up the bell-crank 8 is shifted to depress the valve3, and in so doing the feed-openings are cut off and the feed of gas orgasolene is proportionately decreased, and in case of an excessivelyhigh speed the valve 3 will be forced down until its seat bears on acorresponding seat 2 in the tube 2,and thereby shuts off all flow of thevolatile substance. As the working agent passes into chamber 1 it isdrawn alternately into the opposite ends of the pump -cylinder throughthe valved intakes thereto, and the pump action is such that as it isbeing drawn back of pump-piston in one movement thereof the prior chargeat the front of'the piston is being forced into the proper end of theexplosive-cylinder.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. The combination with the mixing-charm her, the tube 2 communicatingwith said chamber, having air-intakes, said tube having a gas orgasolene feed, a hollow valve slidable in the tube, and having an outletdischarging in the tube at the air-intake end, said tube having avalve-seat, the valve having a seat for cooperating with the tubevalveseat, and inlets at a point belowits seat, and means connected withthe valve and geared with the engine-shaft controlled by the varyingspeed of the engine, for shifting the valve to increase or decrease theflow of gas or gasolene therethrough, as set forth.

2. The combination with the mixing-chamber, the tube 2, dischargingthereon, said tube having a gas-receiving chamber, and an air receivingchamber, divided by a contracted bore, the governor devices, includingthe shaft 10, the ball-levers 11,-the collar 12, and bell-crank lever 8;of the hollowvalve 3, slidable in the contracted bore, its lower endhaving a discharge, projected into the air-receiving chamber of thetube, its upper end having a cutofi seat, and inlets below the seat,said upper end having play in the gasreceiving chamber, of the tube, thesaid valve having a stem projected above the tube, a means forautomatically forcing the valve 3 to its open or gas-receiving position,said stem having a connection with the bell-crank lever 8, as specified.

NVILLIAM J. WRIGHT.

Witnesses:

JOHN L. FLETCHER, A. E. DIETERICH.

